Part cooling fan duct for use with stock Sidewinder 4020 fan.
Fan output is split along the correct direction to maintain equal flow rate between the two
...Plus runners.
Uses M3 hardware.
I've included the STP, STL, and even the Gcode I used to print it.
I also have two pictures showing the Gcode preview in Cura so you can see where I used supports. The red circle shows where I used support blockers. No supports are needed for the runners, on either half.
If you have any questions, I'll be glad to answer them.